this is a cola bbf 5 inch crank that is standard/standard. this crank was just checked by a local machine shop and is straight. anyone who wants a BIG motor (673") this is your chance. selling for $1000.00 . also available are at least 6 good 7.500" carillo rods and 6 or 7 wiseco 4.630 pistons, very reasonable to the person who buys the crank. please call pat at 561-644-4921. thanks.